> For the complete documentation index, see [llms.txt](https://ng-girls.gitbook.io/todo-list-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ng-girls.gitbook.io/todo-list-tutorial/workshop-todo-list/appendix-2-tutorial-extensions.md).

# Appendix 3: Tutorial Extensions

Here you will find links and ideas for extending the todo-list app:

* [Add authentication using Auth0](https://kmaida.gitbooks.io/authenticate-angular-with-auth0/)